<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStatusChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="210px">
          <template v-slot="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDiolog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
              :hide-after="hideafter"  
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[3, 5, 10, 15]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <el-form
          :model="addForm"
          :rules="addFormRules"
          ref="addForm"
          label-width="70px"
        >
          <!-- 添加用户内容主体区域 -->
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 添加用户底部按钮区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <el-form
          :model="editinfo"
          :rules="editFormRules"
          ref="editFormRef"
          label-width="70px"
        >
          <!-- 修改用户内容主体区域 -->
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editinfo.username" :disabled="true" :validate-event="true"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editinfo.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="editinfo.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 修改用户底部按钮区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo"
            >确 定</el-button
          >
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed">
  <div class="">
    <p>当前的用户：{{userinfo.username}}</p>
    <p>当前的角色：{{userinfo.role_name}}</p>
    <p>分配新角色：<template>
  <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in roleList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
</template
></p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        //当前页数
        pagenum: 1,
        //每页显示多少数据
        pagesize: 2,
      },
      userlist: [],
      //需要被分配角色的用户信息
      userinfo:{},
      total: 0,
      //按键提示框的消失时间
      hideafter: 1200,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //控制修改用户对话框的显示和隐藏
      editDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      //所有角色的数据列表
      roleList:[],
      //控制分配角色对话框的显示隐藏
      setRoleDialogVisible:false,
      // 查询到的用户信息
      editinfo:{

      },
      //已选中的角色ID值
      selectedRoleId:'',
      //添加表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 16,
            message: '长度在 6 到 16 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      editFormRules:{
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    //渲染用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败')
      this.userlist = res.data.users
      this.total = res.data.total
    },
    //监听pagesize改变函数
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听页码值改变的函数
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听开关状态的改变
    async userStatusChange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_status = !userinfo.mg_state
        return this.$message.error('修改用户状态失败')
      }
      this.$message.success('修改用户状态成功')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addForm.resetFields()
    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addForm.validate(async (vaild) => {
        if (!vaild) return
        //发送添加用户网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        // 重新获取用户数据
        this.getUserList()
      })
    },
    // 展示编辑用户对话框
    async showEditDiolog(id) {
      const { data: res } = await this.$http.get('users/' + id);
      if (res.meta.status !== 200) {
          this.$message.error('查询用户信息失败')
        }
      this.editinfo=res.data;
      this.editDialogVisible = true
    },
    //监听修改用户对话框关闭后的重置事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交
    editUserInfo(){
      this.$refs.editFormRef.validate(async vaild=>{
        if(!vaild) return;
        //发起修改信息的数据请求
       const{data:res}=await this.$http.put('users/' +this.editinfo.id,{
          email:this.editinfo.email,
          mobile:this.editinfo.mobile
          });
          if (res.meta.status !== 200) {
          this.$message.error('修改用户信息失败')
        }
        this.getUserList();
        this.editDialogVisible = false;
        this.$message.success('修改成功')
      })
    },
    //根据对应id删除用户
   async removeUserById(id){
   const confirmResult= await  this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch( err => err )
        if(confirmResult !=='confirm') return;
      const{data:res}= await this.$http.delete('users/'+id,id);
        if (res.meta.status !== 200) {
          this.$message.error('删除失败')
        }
        this.$message.success('删除成功')
        this.getUserList();
    },
   async setRole(userinfo){
      this.userinfo = userinfo
      //在展示对话框之前获取所有角色列表
    const{data:res}= await this.$http.get('roles')
    if(res.meta.status !==200)return this.$message.error('获取角色列表失败');
    this.roleList = res.data
      this.setRoleDialogVisible=true;
    },
    // 分配角色确认按钮事件
   async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择新的角色！')
      }
    const{data:res}= await this.$http.put(`users/${this.userinfo.id}/role`,{rid:this.selectedRoleId})
    if(res.meta.status!==200) return this.$message.error('分配角色失败');
    this.$message.success('分配角色成功');
    this.getUserList();
      this.setRoleDialogVisible = false
    },
    //分配关闭后清空对话框存储数据
    setRoleDialogClosed(){
      this.selectedRoleId='';
      this.userinfo={};
    }
  },
}
</script>

<style lang="less" scoped>
</style>